I have the Montane Air, which is even lighter, and I like it for that. It fits in the provided small pouch, perfect to put it in a daypack. Nevertheless, the surface fabric doesn't stand scratches on pointy rocks and such (but I'm not sure the xt superfly would either ?), but it's fine for tough scrub or grabbing branches. I'd wait for some sales though, maybe the next one on mainpeak, the best price I can find is 400 $ on campsaver :
http://www.campsaver.com/superfly-xt-jacket-men-s and it's for a XXL... normal price seems to be 500 $ on amazon US.
[edit] I've just seen the Montane Air for 130 £ that's a really good price :
http://www.amazon.co.uk/Montane-Mens-Ai ... 023&sr=8-1 , medium or large.